Acts by holder of power of appointment.

Sec. 1209. For the purpose of granting consent or approval with regard to the acts or accounts of a personal representative, including relief from liability or penalty for failure to post bond or to perform other duties, the sole holder or all coholders of a presently exercisable or testamentary general or special power of appointment, including 1 in the form of a power of amendment or revocation, are deemed to act for beneficiaries to the extent their interests, as permissible appointees, takers in default, or otherwise, are subject to the power.